s0,0,s1,>
s1,0,s2,>
s2,0,s2,1
s2,1,s3,<
s3,0,s4,<
s4,0,s5,<
s5,0,s6,<
s6,0,s6,1
s6,1,s7,<
s7,0,s8,2
